微弱|びじゃくbijaku[0]heiban (flat)

1. na-adjective, nounfeeble; faint; weak

• SynonymかすかNeutralBarely perceptible, as if hardly there; mostly for sounds and memories, while 「微弱」 is about the weak intensity of signals or power.
• SynonymほのかNeutralLight or fragrance sensed only faintly, with a hazy beauty; not said of signals.
• Related薄いうすいNeutralThin, pale or diluted. For weak current or radio waves, 「微弱」 is the typical choice, and 「薄い」 can't stand in for it there.
• Related弱いよわいNeutralThe plain, all-purpose word for weak in strength or degree; more colloquial than 「微弱」.
• Related弱々しいよわよわしいNeutralFor what looks very weak or frail; stresses the outward impression, mostly of people.
• Related淡いあわいNeutralPale colours and faint feelings, often with a delicate beauty, as in 「淡い恋」.
• RelatedおぼろげNeutralHazy and hard to make out or recall; used of memories and impressions, never of signal strength.
• Antonym強大きょうだいNeutralPowerful and large; the opposite of 「微弱」 in the sense of weak strength, said mainly of nations and powers.
• Antonym強力きょうりょくNeutralStrong in power; the opposite of 「微弱」 when that means weak power or strength.
• Antonym強烈きょうれつNeutralIntense, even harsh stimulation; the opposite of 「微弱」, said mainly of impressions and light.
• Antonym猛烈もうれつNeutralFierce and extremely intense; the opposite of 「微弱」, said mainly of momentum or drive.

Use 「微弱」 for weak intensity of signals, current, earthquakes and the like, as in 「微弱な電波」. For sounds or memories sensed faintly pick 「かすか」; for pale colours or faint feelings 「淡い」. Among the antonyms, 「強大」 suits nations and forces, 「強力」 strong power, 「強烈」 impressions and light, 「猛烈」 momentum.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 微かすかで弱よわいこと。